How to patch a punctured tire


How To Plug and Patch a Tire

Knowing how to properly repair a punctured tire can save you money, as well as keep you from being

stranded

on the side of the road.

Luckily, a couple of easy-to-follow methods exist for repairing a punctured tire.

While you should ultimately have your tires inspected and replaced if necessary following a tire repair, the methods below provide a great temporary fix to a punctured tire until you can get to a tire store.

Here's how to plug and patch a tire.

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Using a tire plug to repair a punctured tire

A tire plug kit helps patch a tire quickly and easily. Considered a safer alternative to patches and sealant, a tire plug actually inserts into the tire. It then expands to plug any holes.

Here are the steps for how to plug a tire.

Step 1: Remove tire. Start by removing the punctured tire.

Step 2: Pull out object. Pull out the object that punctured the tire.

Step 3: Clean hole. Clean the puncture hole using a rasp tool, which you can find at brick-and-mortar stores like The Home Depot and Advanced Auto Parts.

A tire plug kit should contain various tools, one of which is a rasp tool.

The rasp tool can help the plug hold by roughening the tire material in the hole where you want to place the plug.

Step 4: Apply adhesive. Apply the adhesive that came with the tire plug kit.

Common adhesives include rubber cement or some other type of glue.

This glue can initially help lubricate the puncture hole, making it easier to get the plug through.

Step 5: Insert plug. Using the insertion tool, which also comes with your kit, insert the plug into the puncture hole.

While difficult to insert in some cases, you can get the plug to fit by squeezing down one of the end of the plug material.

Once the adhesive has dried, cut away any excess material from the plug using a razor or knife.

Step 6: Place air in the tire. Fill the tire to the recommended air pressure, which you can find inside the wall of the tire or in the owner's manual.

Test the seal of the tire plug by squirting a soap/water mix on the puncture area.

If needed, apply more adhesive or try using another plug.

Using tire sealant to repair a punctured tire

Flat tire sealant, such as

Fix-a-Flat

, provides a fast and easy way to fix a punctured tire—as long as the puncture is not too large. You should have the tire professionally repaired or replaced if the puncture is larger than one-quarter inch.

The following steps walk you through the process of using sealant to patch your tire.

Step 1: Remove the object. First, remove the object that punctured your tire.

Step 2: Position the tire. Position the tire so that the valve stem rests at the top of the wheel.

Remove the valve stem cap.

Step 3: Attach tire sealant nozzle. Attach the nozzle from the tire sealant can to the valve stem.

Press the button releasing the sealant into the tire.

Step 4: Drive the car. Drive the car around until the sealant has spread evenly throughout the tire.

This step is necessary to keep the sealant from forming a lump in one area and unbalancing the tire.

Step 5: Replace the tire. Make sure to replace the tire within a certain time limit.

Sealants are only meant to get you to where you can get the tire replaced. Most sealants only last for 100 miles or three days.

To minimize the chances of a punctured tire, try to avoid driving over potholes and other rough areas in the street, as well as on the side of the road where debris collects.

Even given your best efforts, a punctured tire is bound to happen. And when it does, you can use one of the above methods to fix it on the spot. Just remember to take your car to a professional tire shop to have the punctured tire inspected for safety, and replaced if necessary. And don't forget to keep an eye out for

slow leaks

.

If your tires were damaged in an accident or another covered peril, you should contact your insurance company.

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How to Repair a Flat Tire with a Safe, Permanent Fix

So, you have a flat tire or one that’s leaking air. It’s not the end of the world. Luckily there are safe and cost-effective ways to properly repair most tire punctures. The purpose of this article is to show you the difference between a safe, permanent repair and a temporary string, plug or patch repair.

According to the National Highway Traffic Safety Administration (NHSTA) and the Tire Industry Association (TIA), the only method to properly repair a tire puncture is to fill the injury with a repair stem and back the stem with a repair patch. This is commonly known as a combination repair or a patch/plug repair.

Patch/plug repairs are most often performed using a one-piece repair unit that combines the repair stem and cap (or patch) into one unit. However, special circumstances may require the use of a two-piece combination repair (ex. If the angle of the puncture exceeds 35 degrees). The repair is then permanently bonded to the inside of tire and through the injury channel using a cold, chemical vulcanizing process. The repair essentially becomes part of the tire, creating an air-tight seal that keeps air in and moisture and contaminants out (more on this procedure below).

Tire Plugs and String Repairs are Temporary Repairs

Emergency roadside plug repairs are NOT intended to be a permanent tire repair. Plugs and string repairs are designed to get you back up and rolling long enough to get home or to the nearest service center to perform a proper tire repair.

The common misconception with plug and string repairs is that because they hold air, they are safe to use. While it is true that many plug repairs do a great job of keeping air in the tire, that’s only part of the equation. Because they’re not completely sealing the injury, plug repairs may allow air and moisture to penetrate the body of the tire. Over time, this could lead to a dangerous (or even deadly) blowout.

A Patch-Only Tire Repair Leaves Your Tire Susceptible to Damage

A tire repair that uses only a patch is also NOT considered proper or safe. A properly installed patch will do a great job of allowing the tire to hold air. However, similarly to the plug-only repair, the patch does not fill the injury channel. Therefore, air and moisture could seep into the tire from the tread surface and eventually damage the tire.

The Proper Tire Repair Process According to Industry Guidelines

Only a proper patch/plug repair completely seals the puncture from inside the tire and through the entire injury channel. There are a few extra steps necessary to perform a proper tire repair in accordance with industry guidelines. We’ve developed a simple acronym to help organize and remember the steps: R.E.P.A.I.R.

  • Remove: To begin, the tire must be removed from the wheel assembly. This allows for a thorough inspection of both the inside and outside of the tire.
  • Evaluate: With the tire removed from the rim, the puncture can be thoroughly evaluated to determine the size and angle of the injury. It can also be determined if the puncture did any significant damage to the cords or belts.
  • Prepare: Once the tire has been determined to be in good enough condition to repair, it is time to prep the rubber surfaces to remove any damage and contamination to allow for maximum repair unit adhesion. First, the injury is drilled out using a carbide cutter to strip away and damaged cords or belts. Next, the inner liner is cleaned and buffed to a slightly rough texture. This also helps maximize adhesion of the patch/plug repair.
  • Apply: The next step is to apply vulcanizing fluid through the injury and to the buffed area of the inner liner. It is then allowed to air dry for 5-10 minutes.
  • Install: The one- or two-piece repair is installed through the injury channel and the patch portion is thoroughly stitched to the inner liner using a tire stitcher to completely push out any air that may have gotten trapped under the repair. The over-buffed area of the inner liner is treated with a thin layer of rubber sealant, and the excess repair is trimmed to approximately ¼” above the tread surface.
  • Return to Service: The tire is now ready to be remounted to the rim, inflated, balanced and mounted back on the vehicle.

When is it Safe to Repair Your Tire?

There are a number of factors that may determine whether or not your tire is safe to repair. These factors fall into three main categories:

  • Placement of the Injury: For passenger tires, puncture repairs must be within the crown area of the tire. Damage to the shoulder or sidewall cannot be repaired.
  • Size of the Puncture: For fabric-ply passenger and light truck tires, the maximum repairable injury size is ¼” (6mm). For steel belted light truck, medium and heavy-duty truck tires, the maximum injury size is 3/8” (10mm).
  • Overall Condition of the Tire: The condition of your tire may determine whether it is safe to repair. Excessive wear, casing separation, impact damage and other conditions may make it unsafe to properly repair your tire. For a more comprehensive list of repairable vs. non-repairable conditions visit our blog Can Your Tire Be Repaired?

Conclusion:

The occasional flat or leaky tire is an unavoidable part of life. But, taking shortcuts to repair it can be dangerous to you and your passengers. Take the time and do the research to do the job right and/or find a reputable tire repair shop trained in proper tire repair procedure.

What to do if a tire is punctured and what are the ways to repair it

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Author: Aleksey Kokorin

Experienced drivers are not surprised by such a trifle as a puncture, but for the first time beginners usually get confused in the sequence of actions, forget about important details and do not know what to do with a punctured wheel even in a tire shop - especially if they start offering choose from several options or intimidate with expensive repairs. Let's set up an operation algorithm when a flat tire is detected and figure out what to do right away and what to choose later. nine0013

What to do when you find a puncture

Having found a flat tire, first of all you need to stop in a safe place, turn on the alarm, assess visibility and, if necessary, set an emergency stop sign: according to traffic rules, it is installed at least 15 meters from the car in the village and at least 30 meters outside the settlement. When choosing where to stop, consider the space to the side of the vehicle to handle a flat tire. You should not stop right on the road and in places where stopping and parking are prohibited: even if a punctured wheel belongs to the conditions of a forced stop, it is quite possible to drive several tens of meters on it to choose a safe and convenient parking place. At night or in conditions of limited visibility (for example, in fog or rain), it is imperative to wear a vest with retroreflective elements - this is required by clause 2.3.4 of the SDA and common sense. nine0013

Now you can start working on the wheel. We will sequentially consider several options for action, and then move on to ways to repair a damaged tire.

The most obvious solution to a flat tire is to replace it. If you have a spare tire that you are sure is in good condition, the best option is to install it and visit a tire shop to repair a punctured tire - such repairs will be more reliable and of high quality than doing it yourself.

If you don't have a suitable spare tire, but you do have a pump or compressor, you can assess the damage to the tire and try to pump it up again to get to the tire shop. It is better to start searching for an air leak with a valve (aka “nipple” or “nipple”): often a faulty spool becomes the cause of a flat tire. It is easy to check it: unscrew the protective cap (if there is one), pour water on it (or slobber it, as in childhood): air bubbles will leak. In this case, you can try to replace the spool valve by unscrewing it and screwing in a new one, but if there is no new valve, as well as a store nearby, you can try just unscrewing and screwing it back in. Regardless of whether it helped or not, you need to visit a tire shop to replace the entire spool or valve. nine0013

If the valve is tight and the tire is flat, it is most likely a puncture. The easiest way to find a puncture that is free of foreign objects is to pour water on the tire while looking at the surface: the damage will reveal itself as air bubbles. However, often the cause of the puncture can be found along with it: a self-tapping screw, nail or other arbitrary object sticking out of the wheel will clearly indicate the place of depressurization. In this case, you do not need to immediately remove the foreign object from the tire: it partially seals the hole, and if the pressure loss is slow, you can try to pump up the wheel and drive to the tire shop. nine0013

The same goes for wheels that are leaking from the rim or from a faulty valve. Usually, in this case, the air is bled slowly, and you can pump up the wheel and have time to get to the place of repair. By the way, rim leakage can occur due to disk deformation upon impact - for example, when hitting a pit with sharp edges. Such situations are fraught with damage to both the disk and the sidewall of the tire, in which case the disk will need to be corrected, and the tire repaired or even replaced. To avoid rim leaks, you need to inspect the rims every time you change tires. The loss of tightness occurs either due to corrosion or due to disc deformation, and not only steel, but also light alloy wheels can corrode. So if you see paint blistering or rust on the rim, the tires need to be put on rim sealant: when changing tires, this will be cheaper than the subsequent removal and re-tire to fix a leak on the rim. nine0013

If you find a puncture, but there are no foreign objects in it, and you do not have a spare wheel and tire repair kits, there is another popular method of temporary "repair". You can screw a self-tapping screw into the found hole - if, of course, you have one. In extreme cases, you can look for a self-tapping screw in the cabin by unscrewing it from some interior detail. This method cannot be called reliable: it is unlikely to ensure complete tightness of the wheel, but at least it can help you get to the nearest tire shop. nine0013

And a couple more useful remarks. If the wheel is completely flat, then it is easier to inflate it without a spool: the latter must be unscrewed, then the tire must be inflated and quickly screwed back in. The fact is that the spool itself, when inflated, resists the compressor, and in the event of a loose fit of a flat tire to the disk, the power of a simple magazine compressor may not be enough, and the absence of a spool helps to increase air flow and facilitate the operation of the compressor. If this does not help, you can jack up the car by hanging a flat tire: this will improve the fit of the tire to the disk, and the chances of inflating the tire will increase. nine0013

On-Site Repair Methods

Now let's look at options for repairing a tire yourself using special materials that you should carry with you or, if a puncture caught you in the city, buy it at the nearest auto shop.

1. The most common, cheapest and easiest way to do it yourself is to install a raw rubber band. The harnesses are sold complete with an abrasive awl to expand the hole in the tire and improve the contact of the repair harness with its edges, as well as a needle for installing the harness and an adhesive to fix it and at the same time seal the puncture. When choosing a repair kit in a store, you should pay attention to the following nuances:

  • the abrasive awl should not be too "toothy" to avoid damaging the cords - it should just push them apart and lightly work the edges of the hole;
  • the kit must have glue - without it, the tourniquet will hold in the hole worse, and there is a possibility that it will poison the air;​

Install the harness in the following order. First, the found hole is expanded with an abrasive awl - you need to insert and remove it several times into the puncture site. Then the tourniquet is inserted into the eye of the needle, and glue is applied to it. After that, the needle with the tourniquet must be inserted into the hole in the tire and pulled out sharply - so that the tourniquet remains in the hole, and the needle comes out without it. If everything worked out, it remains only to cut the end of the harness flush with the surface of the tire and pump up the wheel. nine0013

The advantages of repairing with a harness are quite decent reliability, simplicity and low cost. On a well-repaired tire, you can drive for a long time, and if the repair site starts to poison, you can either replace the harness or have the tire repaired in a quality service. Among the minuses is the possibility of damaging the cord during installation, as well as lower reliability compared to “full-fledged” repair methods in a tire shop. Strictly speaking, a tourniquet is still a temporary repair, so if it is possible to pump up a wheel and get to a tire fitting, then it is better not to enlarge the hole in the tire and get to the experts. nine0013

2. The second repair option is aerosol liquid sealants sold in cans. To repair a punctured tire with sealant, you need to remove the foreign object from the puncture site, then pour the sealant into the wheel through the valve, twist it to distribute the composition inside the tire, pump up the wheel and drive several kilometers at low speed for the final uniform distribution of the sealant.

Among the advantages of this repair is the simplicity and less labor intensity compared to installing a harness. However, there are also disadvantages: the larger the hole, the higher the chance that the sealant will not be able to eliminate it, and such a repair can affect the wheel balance. Compared to a tourniquet, it can be considered even less reliable and preferable, but simpler. nine0013

Repair options at a tire shop

If you put on a spare tire and brought the wheel to a tire shop, you may also be offered several repair options. Consider the most popular with an indication of the advantages and disadvantages.

1. The first repair method is the same harness installation as described above. As we remember, the tourniquet refers to a temporary repair, so among tire specialists this method is considered bad form, but many workshops do not exclude it from the list of services. All the advantages and disadvantages are the same here: such a repair will be the fastest, simplest and cheapest, but less reliable than other methods. It is worth choosing it in cases where the price and / or speed of the procedure is more important to you than anything else. If quality is a priority, then it is better to fork out for the options listed below. nine0013

2. The second option for repairing a puncture is to install a patch on the inside of the tire, the so-called cold vulcanization. In this case, the tire is removed from the disk, the surface around the puncture is treated with an abrasive, and the damage is sealed with a special patch. This is a more preferred repair method than a tourniquet: it is more reliable and durable, especially in the case of side punctures, when not the thick tread part of the tire is damaged, but the thinner sidewall. Among the minuses, only a higher cost can be noted: in addition to the actual tire repair, you will have to pay for the removal and installation of the wheel (or do it yourself), tire fitting and balancing. nine0013

3. The third option is a "complex" of the first and second: installation of the so-called repair "fungus". The “hat” of the fungus is a patch, and the “leg” is threaded from the inside of the tire to the outside. After gluing the patch, the excess part of the leg is cut off, as in the case of the tourniquet. Thus, not only the inner surface of the tire is closed, but also the hole itself. The advantages and disadvantages of this repair method are generally the same as those of a patch.

4. An extreme, “emergency” measure when repairing a punctured wheel is to install a camera in it. Typically, this method is used for tires that are no longer worth repairing, or “for reliability” after repairing a complex puncture. It should be understood that almost all modern tires are tubeless, that is, they are not designed to install a camera, so it’s not worth driving a wheel repaired in this way for a long time. Installing a tube is a temporary solution for riding until a new tire is purchased, and sometimes such wheels are left as spares. So this repair method can be kept in mind as a backup. nine0011

Finally

We have deliberately left out of this text such methods as combined repair of tires with a tourniquet and a patch and hot vulcanization. The first is used quite rarely and for specific damage, and it is enough just to know about its existence. Well, the second is used to repair serious side cuts, and it is not only rare, but also very expensive. The cut site in this case is prepared, filled with raw rubber and processed with a hot press for vulcanization. Equipment for this procedure is not available in every tire shop, and the cost of repair can be about half the cost of a new tire. nine0013

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How to seal a tubeless tyre?

Information on how to seal a tubeless tire can be useful to any car owner who is faced with an unforeseen situation on the road. Most passenger cars are equipped with tubeless tires, which are easy to mount on the rim, reasonable price, lighter weight and easy to repair if a puncture occurs. The driver will be able to seal the tire on his own, without disassembling.

To learn how to seal a puncture in a tubeless tire, it is worth considering that there are several ways to perform this procedure. Most often, tire repairs are performed using a tourniquet, a fungus patch, and special sprays that tighten the puncture site and stop air leakage. nine0011

If you want to learn how to seal a tubeless tire at home with a repair harness, you should follow the instructions:

  1. The machine must be put on the parking brake, and a chock can be used to fix the position of the transport. Next, the car is jacked up and the wheel removed.

  2. You need to carefully inspect the surface of the wheel to find the puncture site. Damage could occur as a result of piercing the wheel with a nail, self-tapping screw or glass shard. In this case, the head of the nail or the edge of the glass will indicate the cut. The foreign object must be removed with pliers. If the puncture site is not visible, you can pour water on the tire, which will cause the air that comes out of the hole to attract attention with a hiss. The puncture site must be cleaned of dirt and marked with chalk or a marker. nine0011

  3. Next, you need to take an awl with a screw tip and apply special glue to it. After that, the awl is immersed in the puncture hole and several reciprocating movements are made. The tool should not be removed from the hole.

  4. Then, a repair harness (a strip of raw rubber) is installed in an awl with a needle hole. From two parts there should be identical strips, on which a thin layer of glue is applied. To perform a short-term repair of a large damage, you can apply two rubber strips at once. nine0011

  5. The first awl is removed from the puncture, and a tool with a tourniquet is placed in its place. Outside the tire, the edges of the strip remain (1-1.5 cm long). Next, the awl is pulled out of the hole after the tourniquet passes through. A strip of rubber that has folded in half will remain at the puncture site, and its ends should be cut off.

Having learned how to properly seal a tubeless tire with a tourniquet yourself, and after completing this procedure, you need to inflate the tire to the optimum pressure, after which the wheel can be returned to its place. This method is considered relevant if you need to seal a tire tread puncture, and the hole diameter is up to 10 mm. As for side cuts, the elimination of such a problem should be entrusted to professional specialists working in a car repair shop. nine0011

If you are looking for an option on how to seal a tubeless tire with a repair kit yourself, you can perform this procedure using a patch fungus. For this method, you will need to remove the wheel and tire from the disk. You also need to purchase patches in the form of fungi, sandpaper and glue. The repair procedure is as follows:

  1. It is necessary to clean the puncture site, rinse it and remove dirt, as well as foreign objects that damaged the tire. nine0011

  2. Next, the puncture site is cleaned from the inside to give it a roughness. For this task, you can use sandpaper or a drill with a special nozzle.

  3. At the next stage of work, a fungus of the required diameter and size is selected (patches can be purchased at auto parts stores), based on the size of the puncture.

  4. nine0010 The patch is covered with glue and placed on the puncture site, after which it must be firmly pressed.

  5. Then the patch must be allowed to dry, after which the wheel can be assembled.

If you are looking for an answer to the question of how to seal Michelin tubeless tires or tires from another brand, you can use the easiest and most effective way. You can use a spare in a can. Sealant allows you to quickly seal the wheel. To apply it, you need to unscrew the nipple (this action is not always required). The contents of the vial must be squeezed into the opening of the nipple and returned to its place. Within 10 minutes after inflating the tire, you can continue on your way. nine0011

To see how to seal a tubeless tire in a video, you can watch a YouTube video with detailed video instructions: https://www.youtube.com/watch?v=PpnKzfpkeoQ.

What tools should I use to seal a tubeless tire myself?

Based on the method of repair, certain tools and fixtures will be selected. To repair a tire with a tourniquet, you will need a repair tourniquet, two awls (one of them with an eyelet) and glue. When using a patch fungus, you will need a patch, sandpaper (or a drill), and glue. Among other things, repairs can be carried out with tire sealant. Also, when repairing tires, it is worth using a portable compressor (for inflating tires), a repair kit, a jack, pliers, a wheel wrench, a knife and anti-recoil fixing auto devices.


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